Comprehensive relay protection outlet loop tester

Abstract

The invention provides a comprehensive relay protection outlet loop tester. The tester comprises a shell, a port acquisition mechanism arranged on an outer side of the shell, a data processing mechanism which is arranged on the shell and is in signal interconnection with the port acquisition mechanism, a data display module in signal interconnection with the data processing mechanism, an electricenergy supply unit electrically connected with the data processing mechanism, and a fluorescent coating arranged on the outer wall of the shell. The tester is advantaged in that a loop can be directlyintroduced into the device, the action frequency of a circuit breaker is reduced, repeated on-off measurement by a universal meter is not needed, the labor is reduced, the time is saved, and the fluorescent paint is arranged on the outer wall to avoid forgetting and losing phenomena.

Description

technical field [0001] The invention relates to the technical field of testing equipment, in particular to a comprehensive relay protection outlet circuit tester. Background technique [0002] There are currently 30 500kV conventional substations, one 1000kV UHV Nanyang station, one Lingbao converter station, and a large number of 220kV substations in Henan Province. These substations undertake the important tasks of regional power supply and cross-regional power transmission throughout Henan Province, and the time for maintenance and power outages is strictly limited. Among them, there are 31 sets of 1000kV protection equipment, 2048 sets of 500kV protection equipment, hundreds of thousands of 220kV protection equipment, and 165 sets of converter station protection equipment. Each device contains a different number of export circuits, ranging from more than ten to dozens. During power outage maintenance, it is necessary to test the outlet circuit of the relevant protectio...

AI Technical Summary

Problems solved by technology

During the test, the measurement personnel in front of the screen and the measurement personnel behind the screen cooperated through shouting, and after adding the simulated fault amount, each outlet pressure plate was thrown back one by one, and the multimeter measured each corresponding outlet circuit contact one by one to see if it was on or off; while the whole province There are a large number of protection inspections every year, and the number of outlet test contacts that need to be measured can be as high as hundreds of thousands. Repeated work consumes a lot of working time

[0004] The utility model with the authorized announcement number CN201314936 discloses a relay protection export logic comprehensive test device, including the comprehensive test device output contact input circuit, the electrical state analog input circuit, the comprehensive test device output contact input circuit, the electrical state The analog quantity input circuit is connected with the relay protection and automation device under test, the relay protection and automation device under test is connected with the regular open-in circuit of the comprehensive test device through the fixed-point logic outlet, and the relay protection and automation device under test passes through the sequential logic outlet and the comprehensive test The timing selection of the device is connected to the input loop, the conventional opening loop of the comprehensive test device, and the timing selection of the comprehensive testing device is connected to the output logic light signal memory circuit; however, this patent still does not solve how to quickly measure a large number of test contacts

[0005] In the invention with the authorized notification number CN103399229B, a relay protection device protection outlet test device is disclosed, which includes a casing. Several test modules are arranged in parallel in the casing, and the outer wall of the casing is provided with Connected ground terminal and measurement terminal; the test module includes a voltage measurement unit connected in series between the ground terminal and the measurement terminal for measuring the outlet voltage and a current-limiting resistor R1 for reducing the loop current value, the output terminal of the voltage measurement unit Coupled with a sound and light alarm control unit, the output ends of the sound and light alarm control unit are respectively connected to the indicator light circuit and the voice alarm circuit; this invention only describes the exit test of the relay protection device, and does not specify the number of connections that can be made. It also cannot solve the phenomenon of frequent disconnection;

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